JPS6313405U - - Google Patents
Info
- Publication number
- JPS6313405U JPS6313405U JP20301885U JP20301885U JPS6313405U JP S6313405 U JPS6313405 U JP S6313405U JP 20301885 U JP20301885 U JP 20301885U JP 20301885 U JP20301885 U JP 20301885U JP S6313405 U JPS6313405 U JP S6313405U
- Authority
- JP
- Japan
- Prior art keywords
- head
- stage amplifier
- tape recorder
- cassette tape
- recording
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例のダブルカセツトテ
ープレコーダ装置におけるヘツド切換回路を示す
回路図、第２図は本考案の他の実施例の回路図、
第３図および第４図は従来のダブルカセツトテー
プレコーダ装置におけるヘツド切換回路を示す回
路図である。
１１……再生ヘツド、１２……録音・再生ヘツ
ド、１３……再生アンプ、１４……録音アンプ、
１５……定電流回路、Ｓ６〜Ｓ９……切換スイツ
チ、Ｃ９，Ｃ１０……高周波補償用コンデンサ。
FIG. 1 is a circuit diagram showing a head switching circuit in a double cassette tape recorder device according to one embodiment of the present invention, and FIG. 2 is a circuit diagram of another embodiment of the present invention.
3 and 4 are circuit diagrams showing a head switching circuit in a conventional double cassette tape recorder device. 11... Playback head, 12... Recording/playback head, 13... Playback amplifier, 14... Recording amplifier,
15... Constant current circuit, S6 to S9 ... Changeover switch, C9 , C10 ... Capacitor for high frequency compensation.
Claims (1)
接続された第１のカセツトテープレコーダ装置の
第１のヘツドと、前記前段増幅器の入力側に接続
された第２のカセツトテープレコーダ装置の第２
のヘツドと、この第２のヘツドと前記前段増幅器
間に介挿接続された録音再生切換スイツチ手段と
、前記前段増幅器の入力側と前記前段増幅器の間
にあつて前記録音再生スイツチ手段が録音モード
のとき切離され再生モードのとき接続されるグラ
ンド間に介挿された第１の高周波補償用コンデン
サと、前記第２のヘツドとグランド間に介挿され
た第２の高周波補償用コンデンサとを備えている
ことを特徴とするダブルカセツトテープレコーダ
装置におけるヘツド切換回路。 (2) 第１のヘツドのインダクタンスをＬ１、第
２のヘツドのインダクタンスをＬ２、第１の高周
波補償用コンデンサの静電容量をＣＡとしたとき
の第２の高周波補償用コンデンサの静電容量ＣＢ
が、 ＣＢ＝ＣＡ・Ｌ１／Ｌ２ である実用新案登録請求の範囲第１項記載のダブ
ルカセツトテープレコーダ装置におけるヘツド切
換回路。[Claims for Utility Model Registration] (1) A pre-stage amplifier, a first head of a first cassette tape recorder connected to the input side of the pre-stage amplifier, and a first head of a first cassette tape recorder connected to the input side of the pre-stage amplifier; 2nd cassette tape recorder device
a recording/playback switch means interposed and connected between the second head and the pre-stage amplifier; and a recording/playback switch means disposed between the input side of the pre-stage amplifier and the pre-stage amplifier, the recording/playback switch means being connected to the recording mode. a first high-frequency compensation capacitor inserted between the ground that is disconnected when the head is disconnected and connected during the playback mode, and a second high-frequency compensation capacitor inserted between the second head and the ground. A head switching circuit in a double cassette tape recorder device comprising: (2) Electrostatic capacitance of the second high frequency compensation capacitor when the inductance of the first head is L 1 , the inductance of the second head is L 2 , and the capacitance of the first high frequency compensation capacitor is CA Capacity CB
A head switching circuit in a double cassette tape recorder apparatus according to claim 1, wherein CB= CA.L1 / L2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20301885U JPS6313405U (en) | 1985-12-29 | 1985-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20301885U JPS6313405U (en) | 1985-12-29 | 1985-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6313405U true JPS6313405U (en) | 1988-01-28 |
Family
ID=31167948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20301885U Pending JPS6313405U (en) | 1985-12-29 | 1985-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6313405U (en) |
-
1985
- 1985-12-29 JP JP20301885U patent/JPS6313405U/ja active Pending
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